My daughter, Kelsey, found this recipe on the blog AFamilyFeast.com.
3 cups flour
4 tsp. baking powder
1 cup sugar
7 Tbsp. butter
3 large eggs
3/4 cup sliced almonds, lightly chopped
Zest of one orange, finely grated
Preheat oven to 350F, line 2 baking sheets with parchment paper.
Sift together the flour and baking powder.
In an electric mixer, cream sugar and butter. Add eggs, one at a time, beat until light and fluffy.
Add almonds and orange zest, mixing well.
Slowly add flour mixture, stirring until well combined.
Divide the dough in two. Shape into slightly flat logs about 3 inches wide. The width of the log will be the final length of the biscotti, so shape it to the desired size and adjust the baking time accordingly.
Bake approximately 15 minutes, until very lightly browned and the center is cooked through. Test with a toothpick. Bake longer if needed.
Remove from oven and allow to cool slightly. Using a serrated knife, slice the baked dough on a diagonal into 1-inch wide slices. Place back on baking sheets, on their sides, and bake 10 minutes.